Invention Grant
- Patent Title: Dual response blade track system
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Application No.: US15970495Application Date: 2018-05-03
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Publication No.: US10704408B2Publication Date: 2020-07-07
- Inventor: Douglas David Dierksmeier
- Applicant: Rolls-Royce North American Technologies Inc.
- Applicant Address: US IN Indianapolis
- Assignee: Rolls-Royce North American Technologies Inc.
- Current Assignee: Rolls-Royce North American Technologies Inc.
- Current Assignee Address: US IN Indianapolis
- Agency: Brinks Gilson & Lione
- Main IPC: F01D11/18
- IPC: F01D11/18 ; F01D11/24 ; F01D25/14

Abstract:
A blade track system includes an outer ring coupled with a blade track, and an inner ring positioned concentrically between the outer ring and the blade track. The outer ring designed to radially expand, at a first predetermined rate, in response to acceleration of a gas turbine engine. The segments of the blade track radially outwardly expanded away from a hub of the gas turbine engine by the radial expansion of the outer ring. The inner ring designed to radially contract inwardly toward the hub of the gas turbine engine at a second predetermined rate in response to deceleration of the gas turbine. The first predetermined rate being greater than the second predetermined rate, and radial contraction of the outer ring and the segments of the blade track constrained to the predetermined rate of contraction of the inner ring.
Public/Granted literature
- US20190338663A1 DUAL RESPONSE BLADE TRACK SYSTEM Public/Granted day:2019-11-07
Information query
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